About

Sky over Stone makes tees from real sky calculations at Ireland's oldest monuments: Newgrange, Knowth and Dowth in Brú na Bóinne.

Our designs come in three kinds:

• Verified – the calculations have been checked, and each design links to the data behind it.
• Open Questions – ideas archaeologists still debate, and we label them that way.
• Wild Ideas – bold hypotheses, just for fun. Never made-up data, though.

Our free companion site, PA Réalt, shows the sun and the stones: sliothar1.github.io/pa-realt.